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PICList Thread
'Alarm System'
1996\09\22@092326 by Ricardo Barbosa

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Does anybody use a PIC 16Cxx in Home Alarm System?
Appreciate any help!
Thanks,
Ricardo

1996\09\23@074523 by Ken Parkyn

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Ricardo Barbosa wrote:
>
> Does anybody use a PIC 16Cxx in Home Alarm System?
> Appreciate any help!
> Thanks,
> Ricardo

Will anyone replyng to Ricardo echo to me also, I'm also interested in
this.

TIA.
--
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Ken Parkyn
PARKYN ELECTRONIC SERVICES
42 Binnalong Street
ROCHEDALE SOUTH,
Queensland, 4123
Australia
Phone:617-3841-5135
email:spam_OUTK.ParkynTakeThisOuTspamsct.gu.edu.au
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

1996\09\23@080558 by Byron A Jeff

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>
> Does anybody use a PIC 16Cxx in Home Alarm System?
> Appreciate any help!

I'm working on a design now. I'm planning on using a distributed PIC system
with one 16CXX in each console and a 16CXX as the master controller. The
pieces will be tied together via a RS-485 network with the master controller
polling the consoles giving status and receiving any commands. Of course all
the communications will be done in software. I figure I won't need more that
1200 BPS (which can easily be generated by a PIC in a interrupt driver...

I'm also using PICs for some home automation stuff. I had followed the computer
controlled X-10 path, but I got frustrated at the lack of reliability (X-10
lights turning on and off all by themselves). So I've resorted to a hard
wired relay driven system using the $4 12V 10A relays from Rat Shack. The
home control PIC monitors a light to frequency circuit (using a 555 and a
photo-resistor) and turns the outside lights on an off at appropriate times.
Learning how to fish wire from the electrical box to the baseboard has been
an adventure...

BTW I bought all my door/window sensors and alarms (110 dB piezos) from
All Electronics. I've settled on a Home Run arrangement to a fireplace in
my currently unfinished basement.


Hope this helps,

BAJ

1996\09\23@193842 by ogre

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On Mon, 23 Sep 1996 07:41:50 -0400, you wrote:

>>
>> Does anybody use a PIC 16Cxx in Home Alarm System?
>> Appreciate any help!
>
>I'm working on a design now. I'm planning on using a distributed PIC system
>with one 16CXX in each console and a 16CXX as the master controller. The
>pieces will be tied together via a RS-485 network with the master controller
>polling the consoles giving status and receiving any commands. Of course all
>the communications will be done in software. I figure I won't need more that
>1200 BPS (which can easily be generated by a PIC in a interrupt driver...
If you choose 16C63 and 16C73 chips you can use the USARTs to provide
reliable serial communications between the units (MUCH faster than 1200
baud, and much less code).


----------------------------------------------------------
"Will you please shut up!" "You shut up.  I am zee author,
you are zee audience.  I outrank you." -- The Producers

1996\09\23@203350 by Wireless Scientific
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At 11:39 PM 9/23/96 GMT, Ron Hansen wrote:
>On Mon, 23 Sep 1996 07:41:50 -0400, you wrote:
>
>>>
>>> Does anybody use a PIC 16Cxx in Home Alarm System?
>>> Appreciate any help!
>>
>>I'm working on a design now. I'm planning on using a distributed PIC system
>>with one 16CXX in each console and a 16CXX as the master controller. The
>>pieces will be tied together via a RS-485 network with the master controller
>>polling the consoles giving status and receiving any commands. Of course all
>>the communications will be done in software. I figure I won't need more that
>>1200 BPS (which can easily be generated by a PIC in a interrupt driver...
>If you choose 16C63 and 16C73 chips you can use the USARTs to provide
>reliable serial communications between the units (MUCH faster than 1200
>baud, and much less code).


See the ECH for software implementation of async communication. I've
successfully modified that and created a half duplex protocol convertor that
uses bit banged serial on one side and the USART on the other. My software
USART runs up to 19.2 with a 7.8Mhz clock (9600 with 3.8Mhz). My code also
has time to do "other things" while waiting for bit transitions.

craig



____________________________________________________
Dr. Craig Hollabaugh
Wireless Scientific, Inc.
1890 S. 14th, Suite 105
Amelia Island, FL 32034
904 261 6977
904 261 2129 fax
.....wsciKILLspamspam@spam@net-magic.net

1996\09\24@170216 by vador Eduardo Tropea (SET)

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Hi Ricardo and Ken, here SET from Argentina:

>Ricardo Barbosa wrote:
>>
>> Does anybody use a PIC 16Cxx in Home Alarm System?
>> Appreciate any help!
>> Thanks,
>> Ricardo
>Will anyone replyng to Ricardo echo to me also, I'm also interested in
>this.

I'm developing an alarm system for shelters, but can be used in homes, but
still in developing.

bye SET

********************************************************************************
Salvador Eduardo Tropea (SET) - salvadorspamKILLspaminti.edu.ar
Work: INTI (National Institute of Industrial Technology) Sector: ICE
(Electronic Control & Instrumentation)
Post (Home): Curapaligue 2124 - Caseros (1678)- Buenos Aires - Argentina

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